To transfer music from laptop to mobile phone, or vice versa, sync contacts, backup photos, download free apps and games, and clean system cache to increase available phone storage, MoboPlay for PC is the all-in-one smartphone management solution ...
This is another thread about this icon: http://forum.xda-developers.com/tmobile-galaxy-note5/themes-apps/mod-remove-rcs-service-volte-icon-t3362336
Hope it helps.
feature details: http://www.moboplay.com/news/Ilovefreesoftware__Guide_to_Backup_Restore_Your_Android_Phone__Etc____48.html
feedback questions: [email protected]